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Vishay General Semiconductor - Diodes Division SA6.5C-E3/73
- Part No.:
- SA6.5C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA6.5C-E3/73.pdf
- Description:
- TVS DIODE 6.5VWM 12.3VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,684
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Product details
Overview
SA6.5C-E3/73 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for clamping voltage transients on signal or power lines. It features 500 W peak pulse power (10/1000 μs), 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, and clamps to ≤11.2 V at 44.7 A peak pulse current - used in automotive sensor interface protection and industrial I/O line surge suppression.
For engineers reviewing the SA6.5C-E3/73 datasheet, SA6.5C-E3/73 pinout, SA6.5C-E3/73 application, or SA6.5C-E3/73 equivalent, this page delivers verified electrical specs, bi-directional clamping behavior, DO-15 terminal mapping, AEC-Q101 qualification status, and real-world use cases in ESD/surge-prone analog front-ends and CAN bus interfaces.
Technical Context
The SA6.5C-E3/73 operates as a bi-directional avalanche diode with symmetrical clamping in both polarities, enabling transient suppression on AC-coupled or floating signal paths without polarity concerns. Its 10/1000 μs waveform rating supports IEC 61000-4-5 Level 3 surge immunity, and its low incremental clamping voltage (ΔVC = VC − VBR) ensures minimal overvoltage exposure during 44.7 A surges.
Thermally rated for TJ = −55 °C to +175 °C and qualified to AEC-Q101, it sustains repetitive transients under automotive under-hood conditions. The glass-passivated junction and matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 1A whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse voltage before clamping begins; sets operating margin for 5 V logic or USB VBUS lines. |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - Confirmed breakdown threshold range; defines minimum clamping onset across production lot. |
| VC @ IPPM | ≤11.2 V at 44.7 A - Clamped voltage during full-rated 500 W surge; ensures downstream ICs see <12 V stress. |
| PPPM | 500 W - Peak pulse power handling per 10/1000 μs waveform; meets IEC 61000-4-5 surge test compliance. |
| IPPM | 44.7 A - Maximum non-repetitive surge current; determines PCB trace width and fuse coordination. |
| TJ max. | +175 °C - Junction temperature limit; enables placement near heat sources in engine control units. |
| AEC-Q101 | Qualified - Validated for automotive applications including powertrain and body electronics per stress test standard. |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, molded epoxy case meeting UL 94 V-0. Bi-directional construction has no polarity marking; both terminals are electrically identical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both ends serve as bidirectional avalanche junction terminals; no cathode band - installed without orientation constraint. |
| Lead 1 | Connection to PCB trace or cable | Matte tin-plated, solderable per J-STD-002; supports wave or reflow with 275 °C/10 s max solder dip. |
| Lead 2 | Connection to PCB trace or cable | Identical to Lead 1; symmetric layout allows flexible board routing and eliminates assembly errors. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485, CAN), or ungrounded sensors without polarity awareness. |
| 500 W peak pulse power | Sustains IEC 61000-4-5 1 kV/0.5 Ω surge events on 12 V automotive supply rails or industrial 24 V I/O lines. |
| Glass passivated junction | Ensures stable VBR and low leakage (<1 μA at VWM) over temperature and lifetime, critical for battery-powered sensor nodes. |
| AEC-Q101 qualification | Validates reliability for automotive under-hood use, including temperature cycling, humidity bias, and mechanical shock testing. |
| DO-204AC (DO-15) package | Industry-standard axial footprint compatible with legacy through-hole assembly lines and manual repair workflows. |
Applications
| Automotive Sensor Interface | Industrial Analog Input Protection |
|---|---|
Use Scenario: Protecting LIN or CAN transceiver inputs against load dump and ESD in vehicle door modules. IC Role / Device Role / Timing Role: Bidirectional TVS placed between transceiver pins and connector, clamping ±15 kV ESD and 40 V load dump spikes. Use Value: Prevents latch-up or permanent damage to transceivers by limiting voltage to ≤11.2 V during 44.7 A surges. | Use Scenario: Shielding 4–20 mA current loop inputs in PLC analog input cards from field wiring surges. IC Role / Device Role / Timing Role: Placed across loop terminals to shunt induced transients before they reach precision op-amps or ADC front-ends. Use Value: Maintains signal integrity by clamping to <12 V while drawing <1 μA leakage at 6.5 V operating point. |
| USB Port ESD Protection | DC Power Rail Surge Suppression |
Use Scenario: Safeguarding USB 2.0 D+/D− lines in automotive infotainment head units from hot-plug ESD. IC Role / Device Role / Timing Role: Bi-directional TVS mounted directly at USB connector, providing sub-nanosecond response to ±8 kV contact discharge. Use Value: Limits transient overshoot to ≤11.2 V without adding capacitance that degrades 480 Mbps signal integrity. | Use Scenario: Suppressing switching noise and lightning-induced surges on 5 V or 12 V DC power rails in network switches. IC Role / Device Role / Timing Role: Connected between rail and ground to clamp overvoltage events exceeding 6.5 V stand-off level. Use Value: Absorbs 500 W surges without thermal runaway, thanks to 175 °C junction rating and 3.0 W steady-state dissipation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.5CA | Same VWM (6.5 V), lower PPPM (400 W), SMA package (surface-mount) | Requires PCB redesign for SMT placement; unsuitable for through-hole legacy systems. | Select when board space is constrained and reflow assembly is available. |
| 1.5KE6.8CA | Higher VWM (6.8 V), same PPPM (500 W), DO-201 package (larger, higher inductance) | Marginally higher clamping (11.5 V) and slower response due to larger junction area; less precise VWM alignment. | Choose only if DO-201 mechanical fit is required and 0.3 V VWM tolerance is acceptable. |
Compared with SMAJ6.5CA and 1.5KE6.8CA, SA6.5C-E3/73 offers exact 6.5 V stand-off matching, DO-15 through-hole compatibility, and AEC-Q101 qualification - making it optimal for automotive and industrial designs requiring proven reliability and drop-in serviceability.
Availability
SA6.5C-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial analog input protection, USB port ESD hardening, and DC power rail surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for SA6.5C-E3/73 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on high-reliability and automotive-grade performance.
The SAxxC series is part of Vishay's TRANSZORB® TVS family, engineered specifically for robust bi-directional transient suppression in harsh environments including automotive, industrial controls, and telecom infrastructure.
FAQ
What is the polarity configuration of SA6.5C-E3/73?
The SA6.5C-E3/73 is a bi-directional TVS diode with symmetrical avalanche characteristics in both directions. It has no cathode marking and can be installed in either orientation - ideal for protecting AC-coupled or floating signal lines where polarity is undefined or variable. This design eliminates assembly errors and simplifies layout for differential interfaces like CAN or RS-485.
Does SA6.5C-E3/73 meet automotive qualification standards?
Yes, SA6.5C-E3/73 is AEC-Q101 qualified, having passed stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. This certification confirms its suitability for automotive applications such as body control modules, ADAS sensor interfaces, and infotainment systems where reliability under thermal and mechanical stress is mandatory.
What is the maximum clamping voltage of SA6.5C-E3/73 under full-rated surge current?
The SA6.5C-E3/73 clamps to a maximum of 11.2 V at its rated peak pulse current of 44.7 A (10/1000 μs waveform). This value is measured per standardized test conditions and guarantees that protected circuitry downstream will not experience more than 11.2 V during worst-case surge events - critical for safeguarding 5 V or 3.3 V logic-level components.
Can SA6.5C-E3/73 replace uni-directional TVS diodes like SA6.5A-E3/73 in existing designs?
No - SA6.5C-E3/73 is bi-directional and lacks polarity marking, whereas SA6.5A-E3/73 is uni-directional with a cathode band. Substituting them requires verifying that the circuit does not rely on forward conduction (e.g., DC bias paths) and that the bi-directional clamping behavior aligns with system-level surge paths. Always validate with transient simulation and hardware testing before replacement.
What packaging and plating specifications apply to SA6.5C-E3/73?
SA6.5C-E3/73 uses a DO-204AC (DO-15) axial package with molded UL 94 V-0 epoxy and matte tin-plated leads. It complies with J-STD-002 for solderability and JESD 201 Class 1A for whisker resistance. The "E3" suffix indicates RoHS-compliant commercial-grade construction, while "HE3" denotes AEC-Q101-qualified variants - SA6.5C-E3/73 is the former.
SA6.5C-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 12.3V
- Current - Peak Pulse (10/1000µs):
- 40.7A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA6.5C-E3/73 FAQ
1.How can I place an order for SA6.5C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA6.5C-E3/73 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SA6.5C-E3/73 reliable?
The price and inventory of SA6.5C-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA6.5C-E3/73 is usually 5 days.
3.What payment methods are accepted for SA6.5C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA6.5C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA6.5C-E3/73?
SA6.5C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA6.5C-E3/73 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SA6.5C-E3/73?
For technical support, including SA6.5C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA6.5C-E3/73 requirements.
6.How does Aetrix verify that SA6.5C-E3/73 is sourced from the original manufacturer or authorized distributors?
All SA6.5C-E3/73 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SA6.5C-E3/73 meets industry standards.
7.What is the process for return or replacement of SA6.5C-E3/73?
All SA6.5C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA6.5C-E3/73, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SA6.5C-E3/73 part is unused and in its original packaging.
Return procedure for SA6.5C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA6.5C-E3/73 Tags
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